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Sensors 2013, 13(11), 14813-14838; doi:10.3390/s131114813

TiO2 Nanotubes: Recent Advances in Synthesis and Gas Sensing Properties

* , * ,
Sensor Lab, Department of Information Engineering, University of Brescia and CNR INO, Via Valotti 9, 25133 Brescia, Italy
* Authors to whom correspondence should be addressed.
Received: 22 August 2013 / Revised: 22 October 2013 / Accepted: 25 October 2013 / Published: 31 October 2013
(This article belongs to the Special Issue Gas Sensors - 2013)


Synthesis—particularly by electrochemical anodization-, growth mechanism and chemical sensing properties of pure, doped and mixed titania tubular arrays are reviewed. The first part deals on how anodization parameters affect the size, shape and morphology of titania nanotubes. In the second part fabrication of sensing devices based on titania nanotubes is presented, together with their most notable gas sensing performances. Doping largely improves conductivity and enhances gas sensing performances of TiO2 nanotubes
Keywords: titanium dioxide; nanotubes; electrochemical anodization; gas sensors titanium dioxide; nanotubes; electrochemical anodization; gas sensors
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Galstyan, V.; Comini, E.; Faglia, G.; Sberveglieri, G. TiO2 Nanotubes: Recent Advances in Synthesis and Gas Sensing Properties. Sensors 2013, 13, 14813-14838.

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